1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd 4 */ 5 6 #include <common.h> 7 #include <clk.h> 8 #include <crypto.h> 9 #include <dm.h> 10 #include <asm/io.h> 11 #include <asm/arch/hardware.h> 12 #include <asm/arch/clock.h> 13 #include <rockchip/crypto_hash_cache.h> 14 #include <rockchip/crypto_v2.h> 15 #include <rockchip/crypto_v2_pka.h> 16 17 #define RK_HASH_CTX_MAGIC 0x1A1A1A1A 18 19 #ifdef DEBUG 20 #define IMSG(format, ...) printf("[%s, %05d]-trace: " format "\n", \ 21 __func__, __LINE__, ##__VA_ARGS__) 22 #else 23 #define IMSG(format, ...) 24 #endif 25 26 struct crypto_lli_desc { 27 u32 src_addr; 28 u32 src_len; 29 u32 dst_addr; 30 u32 dst_len; 31 u32 user_define; 32 u32 reserve; 33 u32 dma_ctrl; 34 u32 next_addr; 35 }; 36 37 struct rk_hash_ctx { 38 struct crypto_lli_desc data_lli; /* lli desc */ 39 struct crypto_hash_cache *hash_cache; 40 u32 magic; /* to check ctx */ 41 u32 algo; /* hash algo */ 42 u8 digest_size; /* hash out length */ 43 u8 reserved[3]; 44 }; 45 46 struct rk_crypto_soc_data { 47 u32 capability; 48 }; 49 50 struct rockchip_crypto_priv { 51 fdt_addr_t reg; 52 struct clk clk; 53 u32 frequency; 54 char *clocks; 55 u32 *frequencies; 56 u32 nclocks; 57 u32 length; 58 struct rk_hash_ctx *hw_ctx; 59 struct rk_crypto_soc_data *soc_data; 60 }; 61 62 #define LLI_ADDR_ALIGN_SIZE 8 63 #define DATA_ADDR_ALIGN_SIZE 8 64 #define DATA_LEN_ALIGN_SIZE 64 65 66 /* crypto timeout 500ms, must support more than 32M data per times*/ 67 #define HASH_UPDATE_LIMIT (32 * 1024 * 1024) 68 #define RK_CRYPTO_TIMEOUT 500000 69 70 #define RK_POLL_TIMEOUT(condition, timeout) \ 71 ({ \ 72 int time_out = timeout; \ 73 while (condition) { \ 74 if (--time_out <= 0) { \ 75 debug("[%s] %d: time out!\n", __func__,\ 76 __LINE__); \ 77 break; \ 78 } \ 79 udelay(1); \ 80 } \ 81 (time_out <= 0) ? -ETIMEDOUT : 0; \ 82 }) 83 84 #define WAIT_TAG_VALID(channel, timeout) ({ \ 85 u32 tag_mask = CRYPTO_CH0_TAG_VALID << (channel);\ 86 int ret;\ 87 ret = RK_POLL_TIMEOUT(!(crypto_read(CRYPTO_TAG_VALID) & tag_mask),\ 88 timeout);\ 89 crypto_write(crypto_read(CRYPTO_TAG_VALID) & tag_mask, CRYPTO_TAG_VALID);\ 90 ret;\ 91 }) 92 93 #define virt_to_phys(addr) (((unsigned long)addr) & 0xffffffff) 94 #define phys_to_virt(addr, area) ((unsigned long)addr) 95 96 #define align_malloc(bytes, alignment) memalign(alignment, bytes) 97 #define align_free(addr) free(addr) 98 99 #define ROUNDUP(size, alignment) round_up(size, alignment) 100 #define cache_op_inner(type, addr, size) \ 101 crypto_flush_cacheline((ulong)addr, size) 102 103 #define IS_NEED_IV(rk_mode) ((rk_mode) != RK_MODE_ECB && \ 104 (rk_mode) != RK_MODE_CMAC && \ 105 (rk_mode) != RK_MODE_CBC_MAC) 106 107 #define IS_NEED_TAG(rk_mode) ((rk_mode) == RK_MODE_CMAC || \ 108 (rk_mode) == RK_MODE_CBC_MAC || \ 109 (rk_mode) == RK_MODE_CCM || \ 110 (rk_mode) == RK_MODE_GCM) 111 112 #define IS_MAC_MODE(rk_mode) ((rk_mode) == RK_MODE_CMAC || \ 113 (rk_mode) == RK_MODE_CBC_MAC) 114 115 #define IS_AE_MODE(rk_mode) ((rk_mode) == RK_MODE_CCM || \ 116 (rk_mode) == RK_MODE_GCM) 117 118 fdt_addr_t crypto_base; 119 120 static inline void word2byte_be(u32 word, u8 *ch) 121 { 122 ch[0] = (word >> 24) & 0xff; 123 ch[1] = (word >> 16) & 0xff; 124 ch[2] = (word >> 8) & 0xff; 125 ch[3] = (word >> 0) & 0xff; 126 } 127 128 static inline u32 byte2word_be(const u8 *ch) 129 { 130 return (*ch << 24) + (*(ch + 1) << 16) + (*(ch + 2) << 8) + *(ch + 3); 131 } 132 133 static inline void clear_regs(u32 base, u32 words) 134 { 135 int i; 136 137 /*clear out register*/ 138 for (i = 0; i < words; i++) 139 crypto_write(0, base + 4 * i); 140 } 141 142 static inline void clear_hash_out_reg(void) 143 { 144 clear_regs(CRYPTO_HASH_DOUT_0, 16); 145 } 146 147 static inline void clear_key_regs(void) 148 { 149 clear_regs(CRYPTO_CH0_KEY_0, CRYPTO_KEY_CHANNEL_NUM * 4); 150 } 151 152 static inline void read_regs(u32 base, u8 *data, u32 data_len) 153 { 154 u8 tmp_buf[4]; 155 u32 i; 156 157 for (i = 0; i < data_len / 4; i++) 158 word2byte_be(crypto_read(base + i * 4), 159 data + i * 4); 160 161 if (data_len % 4) { 162 word2byte_be(crypto_read(base + i * 4), tmp_buf); 163 memcpy(data + i * 4, tmp_buf, data_len % 4); 164 } 165 } 166 167 static inline void write_regs(u32 base, const u8 *data, u32 data_len) 168 { 169 u8 tmp_buf[4]; 170 u32 i; 171 172 for (i = 0; i < data_len / 4; i++, base += 4) 173 crypto_write(byte2word_be(data + i * 4), base); 174 175 if (data_len % 4) { 176 memset(tmp_buf, 0x00, sizeof(tmp_buf)); 177 memcpy((u8 *)tmp_buf, data + i * 4, data_len % 4); 178 crypto_write(byte2word_be(tmp_buf), base); 179 } 180 } 181 182 static inline void write_key_reg(u32 chn, const u8 *key, u32 key_len) 183 { 184 write_regs(CRYPTO_CH0_KEY_0 + chn * 0x10, key, key_len); 185 } 186 187 static inline void set_iv_reg(u32 chn, const u8 *iv, u32 iv_len) 188 { 189 u32 base_iv; 190 191 base_iv = CRYPTO_CH0_IV_0 + chn * 0x10; 192 193 /* clear iv */ 194 clear_regs(base_iv, 4); 195 196 if (!iv || iv_len == 0) 197 return; 198 199 write_regs(base_iv, iv, iv_len); 200 201 crypto_write(iv_len, CRYPTO_CH0_IV_LEN_0 + 4 * chn); 202 } 203 204 static inline void get_iv_reg(u32 chn, u8 *iv, u32 iv_len) 205 { 206 u32 base_iv; 207 208 base_iv = CRYPTO_CH0_IV_0 + chn * 0x10; 209 210 read_regs(base_iv, iv, iv_len); 211 } 212 213 static inline void get_tag_from_reg(u32 chn, u8 *tag, u32 tag_len) 214 { 215 u32 i; 216 u32 chn_base = CRYPTO_CH0_TAG_0 + 0x10 * chn; 217 218 for (i = 0; i < tag_len / 4; i++, chn_base += 4) 219 word2byte_be(crypto_read(chn_base), tag + 4 * i); 220 } 221 222 static int hw_crypto_reset(void) 223 { 224 u32 val = 0, mask = 0; 225 int ret; 226 227 val = CRYPTO_SW_PKA_RESET | CRYPTO_SW_CC_RESET; 228 mask = val << CRYPTO_WRITE_MASK_SHIFT; 229 230 /* reset pka and crypto modules*/ 231 crypto_write(val | mask, CRYPTO_RST_CTL); 232 233 /* wait reset compelete */ 234 ret = RK_POLL_TIMEOUT(crypto_read(CRYPTO_RST_CTL), RK_CRYPTO_TIMEOUT); 235 236 return ret; 237 } 238 239 static void hw_hash_clean_ctx(struct rk_hash_ctx *ctx) 240 { 241 /* clear hash status */ 242 crypto_write(CRYPTO_WRITE_MASK_ALL | 0, CRYPTO_HASH_CTL); 243 244 assert(ctx); 245 assert(ctx->magic == RK_HASH_CTX_MAGIC); 246 247 crypto_hash_cache_free(ctx->hash_cache); 248 249 memset(ctx, 0x00, sizeof(*ctx)); 250 } 251 252 static int rk_hash_init(void *hw_ctx, u32 algo) 253 { 254 struct rk_hash_ctx *tmp_ctx = (struct rk_hash_ctx *)hw_ctx; 255 u32 reg_ctrl = 0; 256 int ret; 257 258 if (!tmp_ctx) 259 return -EINVAL; 260 261 reg_ctrl = CRYPTO_SW_CC_RESET; 262 crypto_write(reg_ctrl | (reg_ctrl << CRYPTO_WRITE_MASK_SHIFT), 263 CRYPTO_RST_CTL); 264 265 /* wait reset compelete */ 266 ret = RK_POLL_TIMEOUT(crypto_read(CRYPTO_RST_CTL), 267 RK_CRYPTO_TIMEOUT); 268 269 reg_ctrl = 0; 270 tmp_ctx->algo = algo; 271 switch (algo) { 272 case CRYPTO_MD5: 273 case CRYPTO_HMAC_MD5: 274 reg_ctrl |= CRYPTO_MODE_MD5; 275 tmp_ctx->digest_size = 16; 276 break; 277 case CRYPTO_SHA1: 278 case CRYPTO_HMAC_SHA1: 279 reg_ctrl |= CRYPTO_MODE_SHA1; 280 tmp_ctx->digest_size = 20; 281 break; 282 case CRYPTO_SHA256: 283 case CRYPTO_HMAC_SHA256: 284 reg_ctrl |= CRYPTO_MODE_SHA256; 285 tmp_ctx->digest_size = 32; 286 break; 287 case CRYPTO_SHA512: 288 case CRYPTO_HMAC_SHA512: 289 reg_ctrl |= CRYPTO_MODE_SHA512; 290 tmp_ctx->digest_size = 64; 291 break; 292 case CRYPTO_SM3: 293 case CRYPTO_HMAC_SM3: 294 reg_ctrl |= CRYPTO_MODE_SM3; 295 tmp_ctx->digest_size = 32; 296 break; 297 default: 298 ret = -EINVAL; 299 goto exit; 300 } 301 302 clear_hash_out_reg(); 303 304 /* enable hardware padding */ 305 reg_ctrl |= CRYPTO_HW_PAD_ENABLE; 306 crypto_write(reg_ctrl | CRYPTO_WRITE_MASK_ALL, CRYPTO_HASH_CTL); 307 308 /* FIFO input and output data byte swap */ 309 /* such as B0, B1, B2, B3 -> B3, B2, B1, B0 */ 310 reg_ctrl = CRYPTO_DOUT_BYTESWAP | CRYPTO_DOIN_BYTESWAP; 311 crypto_write(reg_ctrl | CRYPTO_WRITE_MASK_ALL, CRYPTO_FIFO_CTL); 312 313 /* enable src_item_done interrupt */ 314 crypto_write(CRYPTO_SRC_ITEM_INT_EN, CRYPTO_DMA_INT_EN); 315 316 tmp_ctx->magic = RK_HASH_CTX_MAGIC; 317 318 return 0; 319 exit: 320 /* clear hash setting if init failed */ 321 crypto_write(CRYPTO_WRITE_MASK_ALL | 0, CRYPTO_HASH_CTL); 322 323 return ret; 324 } 325 326 static int rk_hash_direct_calc(void *hw_data, const u8 *data, 327 u32 data_len, u8 *started_flag, u8 is_last) 328 { 329 struct rockchip_crypto_priv *priv = hw_data; 330 struct rk_hash_ctx *hash_ctx = priv->hw_ctx; 331 struct crypto_lli_desc *lli = &hash_ctx->data_lli; 332 int ret = -EINVAL; 333 u32 tmp = 0, mask = 0; 334 335 assert(IS_ALIGNED((ulong)data, DATA_ADDR_ALIGN_SIZE)); 336 assert(is_last || IS_ALIGNED(data_len, DATA_LEN_ALIGN_SIZE)); 337 338 debug("%s: data = %p, len = %u, s = %x, l = %x\n", 339 __func__, data, data_len, *started_flag, is_last); 340 341 memset(lli, 0x00, sizeof(*lli)); 342 lli->src_addr = (u32)virt_to_phys(data); 343 lli->src_len = data_len; 344 lli->dma_ctrl = LLI_DMA_CTRL_SRC_DONE; 345 346 if (is_last) { 347 lli->user_define |= LLI_USER_STRING_LAST; 348 lli->dma_ctrl |= LLI_DMA_CTRL_LAST; 349 } else { 350 lli->next_addr = (u32)virt_to_phys(lli); 351 lli->dma_ctrl |= LLI_DMA_CTRL_PAUSE; 352 } 353 354 if (!(*started_flag)) { 355 lli->user_define |= 356 (LLI_USER_STRING_START | LLI_USER_CPIHER_START); 357 crypto_write((u32)virt_to_phys(lli), CRYPTO_DMA_LLI_ADDR); 358 crypto_write((CRYPTO_HASH_ENABLE << CRYPTO_WRITE_MASK_SHIFT) | 359 CRYPTO_HASH_ENABLE, CRYPTO_HASH_CTL); 360 tmp = CRYPTO_DMA_START; 361 *started_flag = 1; 362 } else { 363 tmp = CRYPTO_DMA_RESTART; 364 } 365 366 /* flush cache */ 367 crypto_flush_cacheline((ulong)lli, sizeof(*lli)); 368 crypto_flush_cacheline((ulong)data, data_len); 369 370 /* start calculate */ 371 crypto_write(tmp << CRYPTO_WRITE_MASK_SHIFT | tmp, 372 CRYPTO_DMA_CTL); 373 374 /* mask CRYPTO_SYNC_LOCKSTEP_INT_ST flag */ 375 mask = ~(mask | CRYPTO_SYNC_LOCKSTEP_INT_ST); 376 377 /* wait calc ok */ 378 ret = RK_POLL_TIMEOUT(!(crypto_read(CRYPTO_DMA_INT_ST) & mask), 379 RK_CRYPTO_TIMEOUT); 380 381 /* clear interrupt status */ 382 tmp = crypto_read(CRYPTO_DMA_INT_ST); 383 crypto_write(tmp, CRYPTO_DMA_INT_ST); 384 385 if (tmp != CRYPTO_SRC_ITEM_DONE_INT_ST && 386 tmp != CRYPTO_ZERO_LEN_INT_ST) { 387 debug("[%s] %d: CRYPTO_DMA_INT_ST = 0x%x\n", 388 __func__, __LINE__, tmp); 389 goto exit; 390 } 391 392 priv->length += data_len; 393 exit: 394 return ret; 395 } 396 397 int rk_hash_update(void *ctx, const u8 *data, u32 data_len) 398 { 399 struct rk_hash_ctx *tmp_ctx = (struct rk_hash_ctx *)ctx; 400 int ret = -EINVAL; 401 402 debug("\n"); 403 if (!tmp_ctx || !data) 404 goto exit; 405 406 if (tmp_ctx->digest_size == 0 || tmp_ctx->magic != RK_HASH_CTX_MAGIC) 407 goto exit; 408 409 ret = crypto_hash_update_with_cache(tmp_ctx->hash_cache, 410 data, data_len); 411 412 exit: 413 /* free lli list */ 414 if (ret) 415 hw_hash_clean_ctx(tmp_ctx); 416 417 return ret; 418 } 419 420 int rk_hash_final(void *ctx, u8 *digest, size_t len) 421 { 422 struct rk_hash_ctx *tmp_ctx = (struct rk_hash_ctx *)ctx; 423 int ret = -EINVAL; 424 425 if (!digest) 426 goto exit; 427 428 if (!tmp_ctx || 429 tmp_ctx->digest_size == 0 || 430 len > tmp_ctx->digest_size || 431 tmp_ctx->magic != RK_HASH_CTX_MAGIC) { 432 goto exit; 433 } 434 435 /* wait hash value ok */ 436 ret = RK_POLL_TIMEOUT(!crypto_read(CRYPTO_HASH_VALID), 437 RK_CRYPTO_TIMEOUT); 438 439 read_regs(CRYPTO_HASH_DOUT_0, digest, len); 440 441 /* clear hash status */ 442 crypto_write(CRYPTO_HASH_IS_VALID, CRYPTO_HASH_VALID); 443 crypto_write(CRYPTO_WRITE_MASK_ALL | 0, CRYPTO_HASH_CTL); 444 445 exit: 446 447 return ret; 448 } 449 450 static u32 rockchip_crypto_capability(struct udevice *dev) 451 { 452 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 453 u32 capability, mask = 0; 454 455 capability = priv->soc_data->capability; 456 457 #if !(CONFIG_IS_ENABLED(ROCKCHIP_CIPHER)) 458 mask |= (CRYPTO_DES | CRYPTO_AES | CRYPTO_SM4); 459 #endif 460 461 #if !(CONFIG_IS_ENABLED(ROCKCHIP_HMAC)) 462 mask |= (CRYPTO_HMAC_MD5 | CRYPTO_HMAC_SHA1 | CRYPTO_HMAC_SHA256 | 463 CRYPTO_HMAC_SHA512 | CRYPTO_HMAC_SM3); 464 #endif 465 466 #if !(CONFIG_IS_ENABLED(ROCKCHIP_RSA)) 467 mask |= (CRYPTO_RSA512 | CRYPTO_RSA1024 | CRYPTO_RSA2048 | 468 CRYPTO_RSA3072 | CRYPTO_RSA4096); 469 #endif 470 471 return capability & (~mask); 472 } 473 474 static int rockchip_crypto_sha_init(struct udevice *dev, sha_context *ctx) 475 { 476 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 477 struct rk_hash_ctx *hash_ctx = priv->hw_ctx; 478 479 if (!ctx) 480 return -EINVAL; 481 482 memset(hash_ctx, 0x00, sizeof(*hash_ctx)); 483 484 priv->length = 0; 485 486 hash_ctx->hash_cache = crypto_hash_cache_alloc(rk_hash_direct_calc, 487 priv, ctx->length, 488 DATA_ADDR_ALIGN_SIZE, 489 DATA_LEN_ALIGN_SIZE); 490 if (!hash_ctx->hash_cache) 491 return -EFAULT; 492 493 return rk_hash_init(hash_ctx, ctx->algo); 494 } 495 496 static int rockchip_crypto_sha_update(struct udevice *dev, 497 u32 *input, u32 len) 498 { 499 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 500 int ret, i; 501 u8 *p; 502 503 if (!len) 504 return -EINVAL; 505 506 p = (u8 *)input; 507 508 for (i = 0; i < len / HASH_UPDATE_LIMIT; i++, p += HASH_UPDATE_LIMIT) { 509 ret = rk_hash_update(priv->hw_ctx, p, HASH_UPDATE_LIMIT); 510 if (ret) 511 goto exit; 512 } 513 514 if (len % HASH_UPDATE_LIMIT) 515 ret = rk_hash_update(priv->hw_ctx, p, len % HASH_UPDATE_LIMIT); 516 517 exit: 518 return ret; 519 } 520 521 static int rockchip_crypto_sha_final(struct udevice *dev, 522 sha_context *ctx, u8 *output) 523 { 524 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 525 u32 nbits; 526 int ret; 527 528 nbits = crypto_algo_nbits(ctx->algo); 529 530 if (priv->length != ctx->length) { 531 printf("total length(0x%08x) != init length(0x%08x)!\n", 532 priv->length, ctx->length); 533 ret = -EIO; 534 goto exit; 535 } 536 537 ret = rk_hash_final(priv->hw_ctx, (u8 *)output, BITS2BYTE(nbits)); 538 539 exit: 540 hw_hash_clean_ctx(priv->hw_ctx); 541 return ret; 542 } 543 544 #if CONFIG_IS_ENABLED(ROCKCHIP_HMAC) 545 int rk_hmac_init(void *hw_ctx, u32 algo, u8 *key, u32 key_len) 546 { 547 u32 reg_ctrl = 0; 548 int ret; 549 550 if (!key || !key_len || key_len > 64) 551 return -EINVAL; 552 553 clear_key_regs(); 554 555 write_key_reg(0, key, key_len); 556 557 ret = rk_hash_init(hw_ctx, algo); 558 if (ret) 559 return ret; 560 561 reg_ctrl = crypto_read(CRYPTO_HASH_CTL) | CRYPTO_HMAC_ENABLE; 562 crypto_write(reg_ctrl | CRYPTO_WRITE_MASK_ALL, CRYPTO_HASH_CTL); 563 564 return ret; 565 } 566 567 static int rockchip_crypto_hmac_init(struct udevice *dev, 568 sha_context *ctx, u8 *key, u32 key_len) 569 { 570 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 571 struct rk_hash_ctx *hash_ctx = priv->hw_ctx; 572 573 if (!ctx) 574 return -EINVAL; 575 576 memset(hash_ctx, 0x00, sizeof(*hash_ctx)); 577 578 priv->length = 0; 579 580 hash_ctx->hash_cache = crypto_hash_cache_alloc(rk_hash_direct_calc, 581 priv, ctx->length, 582 DATA_ADDR_ALIGN_SIZE, 583 DATA_LEN_ALIGN_SIZE); 584 if (!hash_ctx->hash_cache) 585 return -EFAULT; 586 587 return rk_hmac_init(priv->hw_ctx, ctx->algo, key, key_len); 588 } 589 590 static int rockchip_crypto_hmac_update(struct udevice *dev, 591 u32 *input, u32 len) 592 { 593 return rockchip_crypto_sha_update(dev, input, len); 594 } 595 596 static int rockchip_crypto_hmac_final(struct udevice *dev, 597 sha_context *ctx, u8 *output) 598 { 599 return rockchip_crypto_sha_final(dev, ctx, output); 600 } 601 602 #endif 603 604 #if CONFIG_IS_ENABLED(ROCKCHIP_CIPHER) 605 static u8 g_key_chn; 606 607 static const u32 rk_mode2bc_mode[RK_MODE_MAX] = { 608 [RK_MODE_ECB] = CRYPTO_BC_ECB, 609 [RK_MODE_CBC] = CRYPTO_BC_CBC, 610 [RK_MODE_CTS] = CRYPTO_BC_CTS, 611 [RK_MODE_CTR] = CRYPTO_BC_CTR, 612 [RK_MODE_CFB] = CRYPTO_BC_CFB, 613 [RK_MODE_OFB] = CRYPTO_BC_OFB, 614 [RK_MODE_XTS] = CRYPTO_BC_XTS, 615 [RK_MODE_CCM] = CRYPTO_BC_CCM, 616 [RK_MODE_GCM] = CRYPTO_BC_GCM, 617 [RK_MODE_CMAC] = CRYPTO_BC_CMAC, 618 [RK_MODE_CBC_MAC] = CRYPTO_BC_CBC_MAC, 619 }; 620 621 static inline void set_pc_len_reg(u32 chn, u64 pc_len) 622 { 623 u32 chn_base = CRYPTO_CH0_PC_LEN_0 + chn * 0x08; 624 625 crypto_write(pc_len & 0xffffffff, chn_base); 626 crypto_write(pc_len >> 32, chn_base + 4); 627 } 628 629 static inline void set_aad_len_reg(u32 chn, u64 pc_len) 630 { 631 u32 chn_base = CRYPTO_CH0_AAD_LEN_0 + chn * 0x08; 632 633 crypto_write(pc_len & 0xffffffff, chn_base); 634 crypto_write(pc_len >> 32, chn_base + 4); 635 } 636 637 static inline bool is_des_mode(u32 rk_mode) 638 { 639 return (rk_mode == RK_MODE_ECB || 640 rk_mode == RK_MODE_CBC || 641 rk_mode == RK_MODE_CFB || 642 rk_mode == RK_MODE_OFB); 643 } 644 645 static void dump_crypto_state(struct crypto_lli_desc *desc, 646 u32 tmp, u32 expt_int, 647 const u8 *in, const u8 *out, 648 u32 len, int ret) 649 { 650 IMSG("%s\n", ret == -ETIME ? "timeout" : "dismatch"); 651 652 IMSG("CRYPTO_DMA_INT_ST = %08x, expect_int = %08x\n", 653 tmp, expt_int); 654 IMSG("data desc = %p\n", desc); 655 IMSG("\taddr_in = [%08x <=> %08x]\n", 656 desc->src_addr, (u32)virt_to_phys(in)); 657 IMSG("\taddr_out = [%08x <=> %08x]\n", 658 desc->dst_addr, (u32)virt_to_phys(out)); 659 IMSG("\tsrc_len = [%08x <=> %08x]\n", 660 desc->src_len, (u32)len); 661 IMSG("\tdst_len = %08x\n", desc->dst_len); 662 IMSG("\tdma_ctl = %08x\n", desc->dma_ctrl); 663 IMSG("\tuser_define = %08x\n", desc->user_define); 664 665 IMSG("\n\nDMA CRYPTO_DMA_LLI_ADDR status = %08x\n", 666 crypto_read(CRYPTO_DMA_LLI_ADDR)); 667 IMSG("DMA CRYPTO_DMA_ST status = %08x\n", 668 crypto_read(CRYPTO_DMA_ST)); 669 IMSG("DMA CRYPTO_DMA_STATE status = %08x\n", 670 crypto_read(CRYPTO_DMA_STATE)); 671 IMSG("DMA CRYPTO_DMA_LLI_RADDR status = %08x\n", 672 crypto_read(CRYPTO_DMA_LLI_RADDR)); 673 IMSG("DMA CRYPTO_DMA_SRC_RADDR status = %08x\n", 674 crypto_read(CRYPTO_DMA_SRC_RADDR)); 675 IMSG("DMA CRYPTO_DMA_DST_RADDR status = %08x\n", 676 crypto_read(CRYPTO_DMA_DST_RADDR)); 677 IMSG("DMA CRYPTO_CIPHER_ST status = %08x\n", 678 crypto_read(CRYPTO_CIPHER_ST)); 679 IMSG("DMA CRYPTO_CIPHER_STATE status = %08x\n", 680 crypto_read(CRYPTO_CIPHER_STATE)); 681 IMSG("DMA CRYPTO_TAG_VALID status = %08x\n", 682 crypto_read(CRYPTO_TAG_VALID)); 683 IMSG("LOCKSTEP status = %08x\n\n", 684 crypto_read(0x618)); 685 686 IMSG("dst %dbyte not transferred\n", 687 desc->dst_addr + desc->dst_len - 688 crypto_read(CRYPTO_DMA_DST_RADDR)); 689 } 690 691 static int ccm128_set_iv_reg(u32 chn, const u8 *nonce, u32 nlen) 692 { 693 u8 iv_buf[AES_BLOCK_SIZE]; 694 u32 L; 695 696 memset(iv_buf, 0x00, sizeof(iv_buf)); 697 698 L = 15 - nlen; 699 iv_buf[0] = ((u8)(L - 1) & 7); 700 701 /* the L parameter */ 702 L = iv_buf[0] & 7; 703 704 /* nonce is too short */ 705 if (nlen < (14 - L)) 706 return -EINVAL; 707 708 /* clear aad flag */ 709 iv_buf[0] &= ~0x40; 710 memcpy(&iv_buf[1], nonce, 14 - L); 711 712 set_iv_reg(chn, iv_buf, AES_BLOCK_SIZE); 713 714 return 0; 715 } 716 717 static void ccm_aad_padding(u32 aad_len, u8 *padding, u32 *padding_size) 718 { 719 u32 i; 720 721 i = aad_len < (0x10000 - 0x100) ? 2 : 6; 722 723 if (i == 2) { 724 padding[0] = (u8)(aad_len >> 8); 725 padding[1] = (u8)aad_len; 726 } else { 727 padding[0] = 0xFF; 728 padding[1] = 0xFE; 729 padding[2] = (u8)(aad_len >> 24); 730 padding[3] = (u8)(aad_len >> 16); 731 padding[4] = (u8)(aad_len >> 8); 732 } 733 734 *padding_size = i; 735 } 736 737 static int ccm_compose_aad_iv(u8 *aad_iv, u32 data_len, u32 tag_size) 738 { 739 aad_iv[0] |= ((u8)(((tag_size - 2) / 2) & 7) << 3); 740 741 aad_iv[12] = (u8)(data_len >> 24); 742 aad_iv[13] = (u8)(data_len >> 16); 743 aad_iv[14] = (u8)(data_len >> 8); 744 aad_iv[15] = (u8)data_len; 745 746 aad_iv[0] |= 0x40; //set aad flag 747 748 return 0; 749 } 750 751 static int hw_cipher_init(u32 chn, const u8 *key, const u8 *twk_key, 752 u32 key_len, const u8 *iv, u32 iv_len, 753 u32 algo, u32 mode, bool enc) 754 { 755 u32 rk_mode = RK_GET_RK_MODE(mode); 756 u32 key_chn_sel = chn; 757 u32 reg_ctrl = 0; 758 759 IMSG("%s: key addr is %p, key_len is %d, iv addr is %p", 760 __func__, key, key_len, iv); 761 if (rk_mode >= RK_MODE_MAX) 762 return -EINVAL; 763 764 switch (algo) { 765 case CRYPTO_DES: 766 if (key_len > DES_BLOCK_SIZE) 767 reg_ctrl |= CRYPTO_BC_TDES; 768 else 769 reg_ctrl |= CRYPTO_BC_DES; 770 break; 771 case CRYPTO_AES: 772 reg_ctrl |= CRYPTO_BC_AES; 773 break; 774 case CRYPTO_SM4: 775 reg_ctrl |= CRYPTO_BC_SM4; 776 break; 777 default: 778 return -EINVAL; 779 } 780 781 if (algo == CRYPTO_AES || algo == CRYPTO_SM4) { 782 switch (key_len) { 783 case AES_KEYSIZE_128: 784 reg_ctrl |= CRYPTO_BC_128_bit_key; 785 break; 786 case AES_KEYSIZE_192: 787 reg_ctrl |= CRYPTO_BC_192_bit_key; 788 break; 789 case AES_KEYSIZE_256: 790 reg_ctrl |= CRYPTO_BC_256_bit_key; 791 break; 792 default: 793 return -EINVAL; 794 } 795 } 796 797 reg_ctrl |= rk_mode2bc_mode[rk_mode]; 798 if (!enc) 799 reg_ctrl |= CRYPTO_BC_DECRYPT; 800 801 /* write key data to reg */ 802 write_key_reg(key_chn_sel, key, key_len); 803 804 /* write twk key for xts mode */ 805 if (rk_mode == RK_MODE_XTS) 806 write_key_reg(key_chn_sel + 4, twk_key, key_len); 807 808 /* set iv reg */ 809 if (rk_mode == RK_MODE_CCM) 810 ccm128_set_iv_reg(chn, iv, iv_len); 811 else 812 set_iv_reg(chn, iv, iv_len); 813 814 /* din_swap set 1, dout_swap set 1, default 1. */ 815 crypto_write(0x00030003, CRYPTO_FIFO_CTL); 816 crypto_write(CRYPTO_LIST_DONE_INT_EN | CRYPTO_DST_ITEM_DONE_INT_EN, 817 CRYPTO_DMA_INT_EN); 818 819 crypto_write(reg_ctrl | CRYPTO_WRITE_MASK_ALL, CRYPTO_BC_CTL); 820 821 return 0; 822 } 823 824 static int hw_cipher_crypt(const u8 *in, u8 *out, u64 len, 825 const u8 *aad, u32 aad_len, 826 u8 *tag, u32 tag_len, u32 mode) 827 { 828 struct crypto_lli_desc *data_desc = NULL, *aad_desc = NULL; 829 u8 *dma_in = NULL, *dma_out = NULL, *aad_tmp = NULL; 830 u32 rk_mode = RK_GET_RK_MODE(mode); 831 u32 reg_ctrl = 0, tmp_len = 0; 832 u32 expt_int = 0, mask = 0; 833 u32 key_chn = g_key_chn; 834 u32 tmp, dst_len = 0; 835 int ret = -1; 836 837 if (rk_mode == RK_MODE_CTS && len <= AES_BLOCK_SIZE) { 838 printf("CTS mode length %u < 16Byte\n", (u32)len); 839 return -EINVAL; 840 } 841 842 tmp_len = (rk_mode == RK_MODE_CTR) ? ROUNDUP(len, AES_BLOCK_SIZE) : len; 843 844 data_desc = align_malloc(sizeof(*data_desc), LLI_ADDR_ALIGN_SIZE); 845 if (!data_desc) 846 goto exit; 847 848 if (IS_ALIGNED((ulong)in, DATA_ADDR_ALIGN_SIZE) && tmp_len == len) 849 dma_in = (void *)in; 850 else 851 dma_in = align_malloc(tmp_len, DATA_ADDR_ALIGN_SIZE); 852 if (!dma_in) 853 goto exit; 854 855 if (out) { 856 if (IS_ALIGNED((ulong)out, DATA_ADDR_ALIGN_SIZE) && 857 tmp_len == len) 858 dma_out = out; 859 else 860 dma_out = align_malloc(tmp_len, DATA_ADDR_ALIGN_SIZE); 861 if (!dma_out) 862 goto exit; 863 dst_len = tmp_len; 864 } 865 866 memset(data_desc, 0x00, sizeof(*data_desc)); 867 if (dma_in != in) 868 memcpy(dma_in, in, len); 869 870 data_desc->src_addr = (u32)virt_to_phys(dma_in); 871 data_desc->src_len = tmp_len; 872 data_desc->dst_addr = (u32)virt_to_phys(dma_out); 873 data_desc->dst_len = dst_len; 874 data_desc->dma_ctrl = LLI_DMA_CTRL_LAST; 875 876 if (IS_MAC_MODE(rk_mode)) { 877 expt_int = CRYPTO_LIST_DONE_INT_ST; 878 data_desc->dma_ctrl |= LLI_DMA_CTRL_LIST_DONE; 879 } else { 880 expt_int = CRYPTO_DST_ITEM_DONE_INT_ST; 881 data_desc->dma_ctrl |= LLI_DMA_CTRL_DST_DONE; 882 } 883 884 if (rk_mode == RK_MODE_CCM || rk_mode == RK_MODE_GCM) { 885 u32 aad_tmp_len = 0; 886 887 data_desc->user_define = LLI_USER_STRING_START | 888 LLI_USER_STRING_LAST | 889 (key_chn << 4); 890 891 aad_desc = align_malloc(sizeof(*aad_desc), LLI_ADDR_ALIGN_SIZE); 892 if (!aad_desc) 893 goto exit; 894 895 memset(aad_desc, 0x00, sizeof(*aad_desc)); 896 aad_desc->next_addr = (u32)virt_to_phys(data_desc); 897 aad_desc->user_define = LLI_USER_CPIHER_START | 898 LLI_USER_STRING_START | 899 LLI_USER_STRING_LAST | 900 LLI_USER_STRING_AAD | 901 (key_chn << 4); 902 903 if (rk_mode == RK_MODE_CCM) { 904 u8 padding[AES_BLOCK_SIZE]; 905 u32 padding_size = 0; 906 907 memset(padding, 0x00, sizeof(padding)); 908 ccm_aad_padding(aad_len, padding, &padding_size); 909 910 aad_tmp_len = aad_len + AES_BLOCK_SIZE + padding_size; 911 aad_tmp_len = ROUNDUP(aad_tmp_len, AES_BLOCK_SIZE); 912 aad_tmp = align_malloc(aad_tmp_len, 913 DATA_ADDR_ALIGN_SIZE); 914 if (!aad_tmp) 915 goto exit; 916 917 /* read iv data from reg */ 918 get_iv_reg(key_chn, aad_tmp, AES_BLOCK_SIZE); 919 ccm_compose_aad_iv(aad_tmp, tmp_len, tag_len); 920 memcpy(aad_tmp + AES_BLOCK_SIZE, padding, padding_size); 921 memset(aad_tmp + aad_tmp_len - AES_BLOCK_SIZE, 922 0x00, AES_BLOCK_SIZE); 923 memcpy(aad_tmp + AES_BLOCK_SIZE + padding_size, 924 aad, aad_len); 925 } else { 926 aad_tmp_len = aad_len; 927 if (IS_ALIGNED((ulong)aad, DATA_ADDR_ALIGN_SIZE)) { 928 aad_tmp = (void *)aad; 929 } else { 930 aad_tmp = align_malloc(aad_tmp_len, 931 DATA_ADDR_ALIGN_SIZE); 932 if (!aad_tmp) 933 goto exit; 934 935 memcpy(aad_tmp, aad, aad_tmp_len); 936 } 937 938 set_aad_len_reg(key_chn, aad_tmp_len); 939 set_pc_len_reg(key_chn, tmp_len); 940 } 941 942 aad_desc->src_addr = (u32)virt_to_phys(aad_tmp); 943 aad_desc->src_len = aad_tmp_len; 944 crypto_write((u32)virt_to_phys(aad_desc), CRYPTO_DMA_LLI_ADDR); 945 cache_op_inner(DCACHE_AREA_CLEAN, aad_tmp, aad_tmp_len); 946 cache_op_inner(DCACHE_AREA_CLEAN, aad_desc, sizeof(*aad_desc)); 947 } else { 948 data_desc->user_define = LLI_USER_CPIHER_START | 949 LLI_USER_STRING_START | 950 LLI_USER_STRING_LAST | 951 (key_chn << 4); 952 crypto_write((u32)virt_to_phys(data_desc), CRYPTO_DMA_LLI_ADDR); 953 } 954 955 cache_op_inner(DCACHE_AREA_CLEAN, data_desc, sizeof(*data_desc)); 956 cache_op_inner(DCACHE_AREA_CLEAN, dma_in, tmp_len); 957 cache_op_inner(DCACHE_AREA_INVALIDATE, dma_out, tmp_len); 958 959 /* din_swap set 1, dout_swap set 1, default 1. */ 960 crypto_write(0x00030003, CRYPTO_FIFO_CTL); 961 crypto_write(CRYPTO_DST_ITEM_DONE_INT_EN | CRYPTO_LIST_DONE_INT_EN, 962 CRYPTO_DMA_INT_EN); 963 964 reg_ctrl = crypto_read(CRYPTO_BC_CTL) | CRYPTO_BC_ENABLE; 965 crypto_write(reg_ctrl | CRYPTO_WRITE_MASK_ALL, CRYPTO_BC_CTL); 966 crypto_write(0x00010001, CRYPTO_DMA_CTL);//start 967 968 mask = ~(mask | CRYPTO_SYNC_LOCKSTEP_INT_ST); 969 970 /* wait calc ok */ 971 ret = RK_POLL_TIMEOUT(!(crypto_read(CRYPTO_DMA_INT_ST) & mask), 972 RK_CRYPTO_TIMEOUT); 973 tmp = crypto_read(CRYPTO_DMA_INT_ST); 974 crypto_write(tmp, CRYPTO_DMA_INT_ST); 975 976 if ((tmp & mask) == expt_int) { 977 if (out && out != dma_out) 978 memcpy(out, dma_out, len); 979 980 if (IS_NEED_TAG(rk_mode)) { 981 ret = WAIT_TAG_VALID(key_chn, RK_CRYPTO_TIMEOUT); 982 get_tag_from_reg(key_chn, tag, AES_BLOCK_SIZE); 983 } 984 } else { 985 dump_crypto_state(data_desc, tmp, expt_int, in, out, len, ret); 986 ret = -1; 987 } 988 989 exit: 990 crypto_write(0xffff0000, CRYPTO_BC_CTL);//bc_ctl disable 991 align_free(data_desc); 992 align_free(aad_desc); 993 if (dma_in != in) 994 align_free(dma_in); 995 if (out && dma_out != out) 996 align_free(dma_out); 997 if (aad && aad != aad_tmp) 998 align_free(aad_tmp); 999 1000 return ret; 1001 } 1002 1003 static int hw_aes_init(u32 chn, const u8 *key, const u8 *twk_key, u32 key_len, 1004 const u8 *iv, u32 iv_len, u32 mode, bool enc) 1005 { 1006 u32 rk_mode = RK_GET_RK_MODE(mode); 1007 1008 if (rk_mode > RK_MODE_XTS) 1009 return -EINVAL; 1010 1011 if (iv_len > AES_BLOCK_SIZE) 1012 return -EINVAL; 1013 1014 if (IS_NEED_IV(rk_mode)) { 1015 if (!iv || iv_len != AES_BLOCK_SIZE) 1016 return -EINVAL; 1017 } else { 1018 iv_len = 0; 1019 } 1020 1021 if (rk_mode == RK_MODE_XTS) { 1022 if (key_len != AES_KEYSIZE_128 && key_len != AES_KEYSIZE_256) 1023 return -EINVAL; 1024 1025 if (!key || !twk_key) 1026 return -EINVAL; 1027 } else { 1028 if (key_len != AES_KEYSIZE_128 && 1029 key_len != AES_KEYSIZE_192 && 1030 key_len != AES_KEYSIZE_256) 1031 return -EINVAL; 1032 } 1033 1034 return hw_cipher_init(chn, key, twk_key, key_len, iv, iv_len, 1035 CRYPTO_AES, mode, enc); 1036 } 1037 1038 static int hw_sm4_init(u32 chn, const u8 *key, const u8 *twk_key, u32 key_len, 1039 const u8 *iv, u32 iv_len, u32 mode, bool enc) 1040 { 1041 u32 rk_mode = RK_GET_RK_MODE(mode); 1042 1043 if (rk_mode > RK_MODE_XTS) 1044 return -EINVAL; 1045 1046 if (iv_len > SM4_BLOCK_SIZE || key_len != SM4_KEYSIZE) 1047 return -EINVAL; 1048 1049 if (IS_NEED_IV(rk_mode)) { 1050 if (!iv || iv_len != SM4_BLOCK_SIZE) 1051 return -EINVAL; 1052 } else { 1053 iv_len = 0; 1054 } 1055 1056 if (rk_mode == RK_MODE_XTS) { 1057 if (!key || !twk_key) 1058 return -EINVAL; 1059 } 1060 1061 return hw_cipher_init(chn, key, twk_key, key_len, iv, iv_len, 1062 CRYPTO_SM4, mode, enc); 1063 } 1064 1065 int rk_crypto_des(struct udevice *dev, u32 mode, const u8 *key, u32 key_len, 1066 const u8 *iv, const u8 *in, u8 *out, u32 len, bool enc) 1067 { 1068 u32 rk_mode = RK_GET_RK_MODE(mode); 1069 u8 tmp_key[24]; 1070 int ret; 1071 1072 if (!is_des_mode(rk_mode)) 1073 return -EINVAL; 1074 1075 if (key_len == DES_BLOCK_SIZE || key_len == 3 * DES_BLOCK_SIZE) { 1076 memcpy(tmp_key, key, key_len); 1077 } else if (key_len == 2 * DES_BLOCK_SIZE) { 1078 memcpy(tmp_key, key, 16); 1079 memcpy(tmp_key + 16, key, 8); 1080 key_len = 3 * DES_BLOCK_SIZE; 1081 } else { 1082 return -EINVAL; 1083 } 1084 1085 ret = hw_cipher_init(0, tmp_key, NULL, key_len, iv, DES_BLOCK_SIZE, 1086 CRYPTO_DES, mode, enc); 1087 if (ret) 1088 goto exit; 1089 1090 ret = hw_cipher_crypt(in, out, len, NULL, 0, 1091 NULL, 0, mode); 1092 1093 exit: 1094 return ret; 1095 } 1096 1097 int rk_crypto_aes(struct udevice *dev, u32 mode, 1098 const u8 *key, const u8 *twk_key, u32 key_len, 1099 const u8 *iv, u32 iv_len, 1100 const u8 *in, u8 *out, u32 len, bool enc) 1101 { 1102 int ret; 1103 1104 /* RV1126/RV1109 do not support aes-192 */ 1105 #if defined(CONFIG_ROCKCHIP_RV1126) 1106 if (key_len == AES_KEYSIZE_192) 1107 return -EINVAL; 1108 #endif 1109 1110 ret = hw_aes_init(0, key, twk_key, key_len, iv, iv_len, mode, enc); 1111 if (ret) 1112 return ret; 1113 1114 return hw_cipher_crypt(in, out, len, NULL, 0, 1115 NULL, 0, mode); 1116 } 1117 1118 int rk_crypto_sm4(struct udevice *dev, u32 mode, 1119 const u8 *key, const u8 *twk_key, u32 key_len, 1120 const u8 *iv, u32 iv_len, 1121 const u8 *in, u8 *out, u32 len, bool enc) 1122 { 1123 int ret; 1124 1125 ret = hw_sm4_init(0, key, twk_key, key_len, iv, iv_len, mode, enc); 1126 if (ret) 1127 return ret; 1128 1129 return hw_cipher_crypt(in, out, len, NULL, 0, NULL, 0, mode); 1130 } 1131 1132 int rockchip_crypto_cipher(struct udevice *dev, cipher_context *ctx, 1133 const u8 *in, u8 *out, u32 len, bool enc) 1134 { 1135 switch (ctx->algo) { 1136 case CRYPTO_DES: 1137 return rk_crypto_des(dev, ctx->mode, ctx->key, ctx->key_len, 1138 ctx->iv, in, out, len, enc); 1139 case CRYPTO_AES: 1140 return rk_crypto_aes(dev, ctx->mode, 1141 ctx->key, ctx->twk_key, ctx->key_len, 1142 ctx->iv, ctx->iv_len, in, out, len, enc); 1143 case CRYPTO_SM4: 1144 return rk_crypto_sm4(dev, ctx->mode, 1145 ctx->key, ctx->twk_key, ctx->key_len, 1146 ctx->iv, ctx->iv_len, in, out, len, enc); 1147 default: 1148 return -EINVAL; 1149 } 1150 } 1151 1152 int rk_crypto_mac(struct udevice *dev, u32 algo, u32 mode, 1153 const u8 *key, u32 key_len, 1154 const u8 *in, u32 len, u8 *tag) 1155 { 1156 u32 rk_mode = RK_GET_RK_MODE(mode); 1157 int ret; 1158 1159 if (!IS_MAC_MODE(rk_mode)) 1160 return -EINVAL; 1161 1162 if (algo != CRYPTO_AES && algo != CRYPTO_SM4) 1163 return -EINVAL; 1164 1165 /* RV1126/RV1109 do not support aes-192 */ 1166 #if defined(CONFIG_ROCKCHIP_RV1126) 1167 if (algo == CRYPTO_AES && key_len == AES_KEYSIZE_192) 1168 return -EINVAL; 1169 #endif 1170 1171 ret = hw_cipher_init(g_key_chn, key, NULL, key_len, NULL, 0, 1172 algo, mode, true); 1173 if (ret) 1174 return ret; 1175 1176 return hw_cipher_crypt(in, NULL, len, NULL, 0, 1177 tag, AES_BLOCK_SIZE, mode); 1178 } 1179 1180 int rockchip_crypto_mac(struct udevice *dev, cipher_context *ctx, 1181 const u8 *in, u32 len, u8 *tag) 1182 { 1183 return rk_crypto_mac(dev, ctx->algo, ctx->mode, 1184 ctx->key, ctx->key_len, in, len, tag); 1185 } 1186 1187 int rk_crypto_ae(struct udevice *dev, u32 algo, u32 mode, 1188 const u8 *key, u32 key_len, const u8 *nonce, u32 nonce_len, 1189 const u8 *in, u32 len, const u8 *aad, u32 aad_len, 1190 u8 *out, u8 *tag) 1191 { 1192 u32 rk_mode = RK_GET_RK_MODE(mode); 1193 int ret; 1194 1195 if (!IS_AE_MODE(rk_mode)) 1196 return -EINVAL; 1197 1198 if (algo != CRYPTO_AES && algo != CRYPTO_SM4) 1199 return -EINVAL; 1200 1201 /* RV1126/RV1109 do not support aes-192 */ 1202 #if defined(CONFIG_ROCKCHIP_RV1126) 1203 if (algo == CRYPTO_AES && key_len == AES_KEYSIZE_192) 1204 return -EINVAL; 1205 #endif 1206 1207 ret = hw_cipher_init(g_key_chn, key, NULL, key_len, nonce, nonce_len, 1208 algo, mode, true); 1209 if (ret) 1210 return ret; 1211 1212 return hw_cipher_crypt(in, out, len, aad, aad_len, 1213 tag, AES_BLOCK_SIZE, mode); 1214 } 1215 1216 int rockchip_crypto_ae(struct udevice *dev, cipher_context *ctx, 1217 const u8 *in, u32 len, const u8 *aad, u32 aad_len, 1218 u8 *out, u8 *tag) 1219 1220 { 1221 return rk_crypto_ae(dev, ctx->algo, ctx->mode, ctx->key, ctx->key_len, 1222 ctx->iv, ctx->iv_len, in, len, 1223 aad, aad_len, out, tag); 1224 } 1225 1226 #endif 1227 1228 #if CONFIG_IS_ENABLED(ROCKCHIP_RSA) 1229 static int rockchip_crypto_rsa_verify(struct udevice *dev, rsa_key *ctx, 1230 u8 *sign, u8 *output) 1231 { 1232 struct mpa_num *mpa_m = NULL, *mpa_e = NULL, *mpa_n = NULL; 1233 struct mpa_num *mpa_c = NULL, *mpa_result = NULL; 1234 u32 n_bits, n_words; 1235 u32 *rsa_result; 1236 int ret; 1237 1238 if (!ctx) 1239 return -EINVAL; 1240 1241 if (ctx->algo != CRYPTO_RSA512 && 1242 ctx->algo != CRYPTO_RSA1024 && 1243 ctx->algo != CRYPTO_RSA2048 && 1244 ctx->algo != CRYPTO_RSA3072 && 1245 ctx->algo != CRYPTO_RSA4096) 1246 return -EINVAL; 1247 1248 n_bits = crypto_algo_nbits(ctx->algo); 1249 n_words = BITS2WORD(n_bits); 1250 1251 rsa_result = malloc(BITS2BYTE(n_bits)); 1252 if (!rsa_result) 1253 return -ENOMEM; 1254 1255 memset(rsa_result, 0x00, BITS2BYTE(n_bits)); 1256 1257 ret = rk_mpa_alloc(&mpa_m); 1258 ret |= rk_mpa_alloc(&mpa_e); 1259 ret |= rk_mpa_alloc(&mpa_n); 1260 ret |= rk_mpa_alloc(&mpa_c); 1261 ret |= rk_mpa_alloc(&mpa_result); 1262 if (ret) 1263 goto exit; 1264 1265 mpa_m->d = (void *)sign; 1266 mpa_e->d = (void *)ctx->e; 1267 mpa_n->d = (void *)ctx->n; 1268 mpa_c->d = (void *)ctx->c; 1269 mpa_result->d = (void *)rsa_result; 1270 1271 mpa_m->size = n_words; 1272 mpa_e->size = n_words; 1273 mpa_n->size = n_words; 1274 mpa_c->size = n_words; 1275 mpa_result->size = n_words; 1276 1277 ret = rk_exptmod_np(mpa_m, mpa_e, mpa_n, mpa_c, mpa_result); 1278 if (!ret) 1279 memcpy(output, rsa_result, BITS2BYTE(n_bits)); 1280 1281 exit: 1282 free(rsa_result); 1283 rk_mpa_free(&mpa_m); 1284 rk_mpa_free(&mpa_e); 1285 rk_mpa_free(&mpa_n); 1286 rk_mpa_free(&mpa_c); 1287 rk_mpa_free(&mpa_result); 1288 1289 return ret; 1290 } 1291 #endif 1292 1293 static const struct dm_crypto_ops rockchip_crypto_ops = { 1294 .capability = rockchip_crypto_capability, 1295 .sha_init = rockchip_crypto_sha_init, 1296 .sha_update = rockchip_crypto_sha_update, 1297 .sha_final = rockchip_crypto_sha_final, 1298 #if CONFIG_IS_ENABLED(ROCKCHIP_RSA) 1299 .rsa_verify = rockchip_crypto_rsa_verify, 1300 #endif 1301 #if CONFIG_IS_ENABLED(ROCKCHIP_HMAC) 1302 .hmac_init = rockchip_crypto_hmac_init, 1303 .hmac_update = rockchip_crypto_hmac_update, 1304 .hmac_final = rockchip_crypto_hmac_final, 1305 #endif 1306 #if CONFIG_IS_ENABLED(ROCKCHIP_CIPHER) 1307 .cipher_crypt = rockchip_crypto_cipher, 1308 .cipher_mac = rockchip_crypto_mac, 1309 .cipher_ae = rockchip_crypto_ae, 1310 #endif 1311 }; 1312 1313 /* 1314 * Only use "clocks" to parse crypto clock id and use rockchip_get_clk(). 1315 * Because we always add crypto node in U-Boot dts, when kernel dtb enabled : 1316 * 1317 * 1. There is cru phandle mismatch between U-Boot and kernel dtb; 1318 * 2. CONFIG_OF_SPL_REMOVE_PROPS removes clock property; 1319 */ 1320 static int rockchip_crypto_ofdata_to_platdata(struct udevice *dev) 1321 { 1322 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 1323 int len, ret = -EINVAL; 1324 1325 if (!dev_read_prop(dev, "clocks", &len)) { 1326 printf("Can't find \"clocks\" property\n"); 1327 return -EINVAL; 1328 } 1329 1330 memset(priv, 0x00, sizeof(*priv)); 1331 priv->clocks = malloc(len); 1332 if (!priv->clocks) 1333 return -ENOMEM; 1334 1335 priv->nclocks = len / sizeof(u32); 1336 if (dev_read_u32_array(dev, "clocks", (u32 *)priv->clocks, 1337 priv->nclocks)) { 1338 printf("Can't read \"clocks\" property\n"); 1339 ret = -EINVAL; 1340 goto exit; 1341 } 1342 1343 if (!dev_read_prop(dev, "clock-frequency", &len)) { 1344 printf("Can't find \"clock-frequency\" property\n"); 1345 ret = -EINVAL; 1346 goto exit; 1347 } 1348 1349 priv->frequencies = malloc(len); 1350 if (!priv->frequencies) { 1351 ret = -ENOMEM; 1352 goto exit; 1353 } 1354 1355 priv->nclocks = len / sizeof(u32); 1356 if (dev_read_u32_array(dev, "clock-frequency", priv->frequencies, 1357 priv->nclocks)) { 1358 printf("Can't read \"clock-frequency\" property\n"); 1359 ret = -EINVAL; 1360 goto exit; 1361 } 1362 1363 priv->reg = (fdt_addr_t)dev_read_addr_ptr(dev); 1364 1365 crypto_base = priv->reg; 1366 1367 return 0; 1368 exit: 1369 if (priv->clocks) 1370 free(priv->clocks); 1371 1372 if (priv->frequencies) 1373 free(priv->frequencies); 1374 1375 return ret; 1376 } 1377 1378 static int rockchip_crypto_probe(struct udevice *dev) 1379 { 1380 struct rockchip_crypto_priv *priv = dev_get_priv(dev); 1381 struct rk_crypto_soc_data *sdata; 1382 int i, ret = 0; 1383 u32* clocks; 1384 1385 sdata = (struct rk_crypto_soc_data *)dev_get_driver_data(dev); 1386 priv->soc_data = sdata; 1387 1388 priv->hw_ctx = memalign(LLI_ADDR_ALIGN_SIZE, 1389 sizeof(struct rk_hash_ctx)); 1390 if (!priv->hw_ctx) 1391 return -ENOMEM; 1392 1393 ret = rockchip_get_clk(&priv->clk.dev); 1394 if (ret) { 1395 printf("Failed to get clk device, ret=%d\n", ret); 1396 return ret; 1397 } 1398 1399 clocks = (u32 *)priv->clocks; 1400 for (i = 0; i < priv->nclocks; i++) { 1401 priv->clk.id = clocks[i * 2 + 1]; 1402 ret = clk_set_rate(&priv->clk, priv->frequencies[i]); 1403 if (ret < 0) { 1404 printf("%s: Failed to set clk(%ld): ret=%d\n", 1405 __func__, priv->clk.id, ret); 1406 return ret; 1407 } 1408 } 1409 1410 hw_crypto_reset(); 1411 1412 return 0; 1413 } 1414 1415 static const struct rk_crypto_soc_data soc_data_base = { 1416 .capability = CRYPTO_MD5 | 1417 CRYPTO_SHA1 | 1418 CRYPTO_SHA256 | 1419 CRYPTO_SHA512 | 1420 CRYPTO_HMAC_MD5 | 1421 CRYPTO_HMAC_SHA1 | 1422 CRYPTO_HMAC_SHA256 | 1423 CRYPTO_HMAC_SHA512 | 1424 CRYPTO_RSA512 | 1425 CRYPTO_RSA1024 | 1426 CRYPTO_RSA2048 | 1427 CRYPTO_RSA3072 | 1428 CRYPTO_RSA4096 | 1429 CRYPTO_DES | 1430 CRYPTO_AES, 1431 }; 1432 1433 static const struct rk_crypto_soc_data soc_data_base_sm = { 1434 .capability = CRYPTO_MD5 | 1435 CRYPTO_SHA1 | 1436 CRYPTO_SHA256 | 1437 CRYPTO_SHA512 | 1438 CRYPTO_SM3 | 1439 CRYPTO_HMAC_MD5 | 1440 CRYPTO_HMAC_SHA1 | 1441 CRYPTO_HMAC_SHA256 | 1442 CRYPTO_HMAC_SHA512 | 1443 CRYPTO_HMAC_SM3 | 1444 CRYPTO_RSA512 | 1445 CRYPTO_RSA1024 | 1446 CRYPTO_RSA2048 | 1447 CRYPTO_RSA3072 | 1448 CRYPTO_RSA4096 | 1449 CRYPTO_DES | 1450 CRYPTO_AES | 1451 CRYPTO_SM4, 1452 }; 1453 1454 static const struct rk_crypto_soc_data soc_data_rk1808 = { 1455 .capability = CRYPTO_MD5 | 1456 CRYPTO_SHA1 | 1457 CRYPTO_SHA256 | 1458 CRYPTO_HMAC_MD5 | 1459 CRYPTO_HMAC_SHA1 | 1460 CRYPTO_HMAC_SHA256 | 1461 CRYPTO_RSA512 | 1462 CRYPTO_RSA1024 | 1463 CRYPTO_RSA2048 | 1464 CRYPTO_RSA3072 | 1465 CRYPTO_RSA4096, 1466 }; 1467 1468 static const struct udevice_id rockchip_crypto_ids[] = { 1469 { 1470 .compatible = "rockchip,px30-crypto", 1471 .data = (ulong)&soc_data_base 1472 }, 1473 { 1474 .compatible = "rockchip,rk1808-crypto", 1475 .data = (ulong)&soc_data_rk1808 1476 }, 1477 { 1478 .compatible = "rockchip,rk3308-crypto", 1479 .data = (ulong)&soc_data_base 1480 }, 1481 { 1482 .compatible = "rockchip,rv1126-crypto", 1483 .data = (ulong)&soc_data_base_sm 1484 }, 1485 { 1486 .compatible = "rockchip,rk3568-crypto", 1487 .data = (ulong)&soc_data_base_sm 1488 }, 1489 { } 1490 }; 1491 1492 U_BOOT_DRIVER(rockchip_crypto_v2) = { 1493 .name = "rockchip_crypto_v2", 1494 .id = UCLASS_CRYPTO, 1495 .of_match = rockchip_crypto_ids, 1496 .ops = &rockchip_crypto_ops, 1497 .probe = rockchip_crypto_probe, 1498 .ofdata_to_platdata = rockchip_crypto_ofdata_to_platdata, 1499 .priv_auto_alloc_size = sizeof(struct rockchip_crypto_priv), 1500 }; 1501